The initial debate over the treatment of Dzhokhar Tsarnaev focused on whether he should be advised of his Miranda rights or whether the "public safety exception" justified delaying it. In the wake of news reports that he had been Mirandized and would be charged in a federal court, I credited the Obama DOJ for handling the case reasonably well thus far. As it turns out, though, Tsarnaev wasn't Mirandized because the DOJ decided he should be. Instead, that happened only because a federal magistrate, on her own, scheduled a hospital-room hearing, interrupted the FBI's interrogation which had been proceeding at that point for a full 16 hours, and advised him of his right to remain silent and appointed him a lawyer. Since then, Tsarnaev ceased answering the FBI's questions.